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sesenic [268]
3 years ago
13

What do you know about the signs of two intergers whose product (a) positive and (b) negative?

Mathematics
2 answers:
Fynjy0 [20]3 years ago
8 0
( + ) ( - ) = ( - )
steposvetlana [31]3 years ago
5 0
A. Their signs are the same.
b. one is negative, the other is positive
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217 is what percent of 620
Flura [38]
\sf  \dfrac{217}{620}  \\  \\ = 0.35 \\  \\ Convert \ the \ decimal \ percent \ by \ multiplying \ 100 \\  \\  0.35 \times 100  \\  \\ = 35\%
3 0
3 years ago
Aiko jump rope for an amazing 20 min she stopped at 8:05 when did she start
Scrat [10]
Aiko jump roped for 20 minutes before stopping at 8:05. Just count 20 minutes back in order to see when she started.

8:05 - 20 minutes = 7:45
6 0
3 years ago
Read 2 more answers
The power generated by an electrical circuit (in watts) as function of its current x (in amperes) is modeled by: P(x)=-12x^2 +12
Minchanka [31]

Given:

The power generated by an electrical circuit (in watts) as function of its current x (in amperes) is modeled by:

P(x)=-12x^2+120x

To find:

The current that will produce the maximum power.

Solution:

We have,

P(x)=-12x^2+120x

Here, leading coefficient is negative. So, it is a downward parabola.

Vertex of a downward parabola is the point of maxima.

If a parabola is f(x)=ax^2+bx+c, then

Vertex=\left(\dfrac{-b}{2a},f(\dfrac{-b}{2a})\right)

In the given function, a=-12 and b=120. So,

-\dfrac{b}{2a}=-\dfrac{120}{2(-12)}

-\dfrac{b}{2a}=-\dfrac{120}{-24}

-\dfrac{b}{2a}=5

Putting x=5 in the given function, we get

P(5)=-12(5)^2+120(5)

P(5)=-12(25)+600

P(5)=-300+600

P(5)=300

Therefore, 5 watt current will produce the maximum power of 300 amperes.

6 0
3 years ago
What is the volume of the right prism?
uranmaximum [27]
Volume prism= ½•a•c•h
=½•7•11•5
=½•385

=192.5cm³



--------------
7 0
3 years ago
5.6÷7=8 is it a reasonable quotient
Licemer1 [7]

5x6=30

30/7=4.393939349958

6 0
3 years ago
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